Using your SO_REUSEPORT patch and a modified bind using it. The same
system is able to deliver ~650K queries per seconds while maxing out
all cores completely.

Nice data point.

Tom, Bill: do you have a timeline for merging this? Especially the
UDP bits?

Bill has been working on the TCP implementation which is requiring
some fairly major surgery on the listener connections in syn-rcvd
state, this is ongoing.

On the UDP side, I believe the patch is functional, but as Eric
pointed out it probably could be further optimized.  I'll split out
the UDP bits into a separate patch and post that...

Tom

-Thomas